57o 
bulletin of the bureau of fisheries. 
Obelia geniculata — Continued. 
Fish Hawk stations: 7525 bis, 7532 bis, 7535 bis*, 
7543 bis » 7548*, 755 I > 7557 . 75^0, 7575, 7579 - 
7582, 7583, 7585, 7589, 7592, 7593, 7595, 7610, 
7637, 7642, 7656 (?)*, 7662, 7664, 7667, 7671*, 
7678*, 7679 (?)*, 7701 (?)*, 7702 (?)*, 7703*, 
7704*, 7706*, 7709 (?)*, 7718*, 7720*, 7722*, 
77 2 3 *. 7726 (?)*, 7730 (?)*> 7 73 1 ( ? )*> 7739 *. 
7755 *. 7767*- Supplementary stations: Ap- 
proximate repetitions in 1907 of stations 7521, 
758 i, 773 1 ( ? )> 7739 - 
Phalarope and Blue Wing stations: 17, 24 (?)*, 
28 (?), 29 (?), 32*, 33, 34, 44*, 47*, 51*, 57, 
58*, 114*, 118*. 
Obelia gelatinosa (Pallas). 
Verrill and Smith, 1873, p. 728, 391, etc.; 
Nutting, 1901, pp. 351, 380; Hargitt, 1904, 
p. 48; Mayer, 1910, p. 244. 
Listed by Nutting and Hargitt for the region. 
According to Verrill, this species is sometimes 
found in waters which are quite brackish, 
while Nutting states that it may grow between 
tides. 
Obelia pyriformis (A. Agassiz). 
Verrill and Smith, 1873, p. 727, 390, etc.; 
Hargitt, 1904, p. 49; Mayer, 1910, p. 247. 
“Very abundant on piles of wharves, etc., at 
Woods Hole.” — Verrill. Hargitt records the 
medusae locally. Nutting thinks it likely that 
this species is identical with Obelia dichotoma 
(Linnaeus). 
Obelia bicuspidata Clarke. 
Nutting, 1901, p. 351; Mayer, 1910, p. 254 ( Obelia 
bidentata). 
“Near Woods Hole, 19 fathoms.” — Nutting. 
Vineyard Haven. — Hargitt. 
Obelia longissima (Pallas). 
Verrill and Smith, 1873, p. 728; Nutting, iqor, 
P- 35 U 379 '. Mayer, 1910, p. 255. 
Gay Head. — Verrill. Woods Hole. — Nutting. 
Obelia bidentata Clarke. 
Nutting, 1901, p. 351 (not recorded locally); 
Mayer, 1910, p. 254. 
Vineyard Haven. — Hargitt. 
Obelia congdoni Hargitt. 
Hargitt, 1909, p. 375 (sp. nov.) 
Vicinity of Woods Hole, on floating sargassum, 
taken during the summers of 1907 and 1908. 
“Obelia polygena Verrill” (said to be equivalent 
to Eucope polygena A. Agassiz) and “ Obelia 
divaricata Verrill” ( =Laomedea divaricata 
McCrady) are likewise listed by Verrill and 
Smith (1873, p. 727), the former species being 
recorded as taken “off Gay Head, 4 to 5 fath- 
oms, not common,” the latter “found on float- 
ing algae in Vineyard Sound.” The identity 
of the species here referred to is not certain. 
Obelia sp. undet. 
Unidentified specimens belonging to this genus, 
but probably referable to one or more of the 
above species, are recorded for Fish Hawk sta- 
tion 7676 and Blue Wing stations 21 and 23. 
Gonothyrcea loveni Allman. 
Nutting, 1901, p. 352; Hargitt, 1901a, p. 386. 
Woods Hole, “on fucus and other algae, rocks, 
etc.;” taken off Nantucket in June, 1906, by 
Mr. Edwards. — Hargitt. 
Family Lafceid^E. 
Lafoca dnmosa Fleming. 
Nutting, 1901, p. 355. 
Nantucket Shoals, growing on other hydroids. — 
Verrill, cited by Nutting. 
Lafeea gracilKma (Alder). 
Nutting, 1901, p. 356; Hargitt, 1908, p. 113. 
“Although not specifically reported from the 
Woods Hole region, it doubtless occurs there, 
as its distribution is much like that of L. 
dumosa.” — Nutting. Prof. Hargitt found 
specimens which he thinks were probably 
referable to this species upon a shell dredged 
off Sankaty Light at a depth of 25 fathoms. 
Ilcbella pygmcea Hincks. 
Nutting, 1901, p. 353. 
“Found on a polyzoon off Nantucket; Sankaty 
Light, east by south; depth, 24 fathoms (Vinal 
Edwards).” 
Hcbclla sp. undet. 
A minute species taken at Crab Ledge. — Hargitt. 
Family PIydroceratinid/E. 
Keratosum complexum Hargitt. 
Hargitt, 1909, p. 379 (sp. nov.); Hargitt, 1911, 
p. 187. 
Crab Ledge, summers of 1903 and 1909. Super- 
ficially, this species bears considerable resem- 
blance to a branching sponge, and was at first 
regarded as such. All of the specimens which 
have been examined by Dr. Hargitt appear 
to be in a state of degeneration, perhaps of 
aestivation, “no hydranths or similar organs 
being distinguishable.” 
